盲分离与时频分析融合的多源信道均衡  

Multi-source channel equalization method combined with blind separation and time-frequency analysis

作　　者：李军[1] 王凯[2] 康春玉[1] 

机构地区：[1]海军大连舰艇学院信息与通信工程系,辽宁大连116018 [2]大连东软信息学院计算机科学与技术系,辽宁大连116023

出　　处：《电子技术应用》2012年第6期118-121,125,共5页Application of Electronic Technique

摘　　要：针对多信源条件下强多途干扰严重的水声信道,提出一种盲分离与时频分析融合的多源信道均衡技术。该方法首先应用盲分离技术将多源接收信号进行有效分离,对分离后的信号进行时频分析运算,然后采用Radon变换加解线调方法估计出信号的主要参数,通过重构声源信号最终完成信号的复原。通过对计算机仿真数据和海试数据的处理,验证了该方法的可行性和有效性。Aimming at the multi-source underwater acoustic channel which is interfered intensely by multipath, a multi-source channel equalization method combined with blind separation and time-frequency analysis was presented. Firstly, using blind source separation （BSS） method to separate individual source signal from the mixed signals. Secondly, the RGK time-frequency analysis method is proposed to analyze the extracted signals. Finally, radon transformation is used to estimate the main parameters of the source signal. We use that method to deal with the simulation and trial data.

关 键 词：水声信道 盲分离 时频分析 信道均衡 

分 类 号：TN911.5[电子电信—通信与信息系统]